Triton Technology: Crystal Biotech compatible small vessel Volume Flowmeter Module

Small Vessel Transit Time Flowmeter Module -

Model 300-257

The new Small Vessel Transit Time Flowmeter is an extension of the highly
successful ART² flowmeter for volume blood flow measurement. The Small Vessel
Flowmeter and probes are designed to work in large or small experimental
preparations. The probes are designed for either acute or chronic preparations. A
number of these probes have been implanted in renal and coronary arteries and are
still functioning well after one to two years.

The probes for the Model 300-257 utilizes a reflected sound path in order to place
both transducer elements on the same side of the vessel. This has the advantage of
allowing the probe to be placed on a partially imbedded vessel without crimping or
occluding the vessel. An example of this would be a coronary artery lying in a
groove on the myocardial surface. Since only the reflector must pass under the
vessel, the probe may be applied without crimping or deforming the vessel. Newly
developed anti-rotation suture tabs have further improved this design.

These probes are molded from a bio-compatible epoxy resin that has been loaded
with glass micro-balloons. The result is a very light weight probe which is well
tolerated in chronic preparations. The Small Vessel Flowmeter is presently available
for blood vessels of 1 to 6.5 mm.

The Small Vessel Flowmeter automatically detects the size of the flowprobe which
is attached and changes internal timing and gain circuits to achieve a calibrated output
voltage for subsequent recording or data acquisition.

A large front LCD display serves several functions. A running average MEAN FLOW
is displayed while in the RUN mode. If, however, the SIZE button is pressed while in the RUN mode, the probe size
is displayed. This is a helpful feature in a chronic preparations. In the CALIB mode the display shows the calibrate value.
This should agree with the RUN/CALIB switch verifying proper operation.

The user friendly Model 300-257 - Small Vessel Transit Time flowmeter is an important addition to the 'CBI System'
family of physiologic monitoring modules.

Transit Time Volume Flow Probes - ARTT 367 Series Probes

Click on picture for full size frame.

Acute use probe preparation

Implantable probes designed for acute use with the both Model 300-257 and 200-257 - Active Redirection Transit Time (ART²) Flow modules. Probe has a 40 cm cable which directly connects to the module. Requires accessory cable 200-387 or 200-388. Optional connectors available; Skin button or bullet, Konigsberg or Triton, must be specified upon ordering.

                                                        
Part No.                           Item                      

200-367-1.0   2.0 mm Active Redirection Flow Cuff          

200-367-2.0   2.0 mm Active Redirection Flow Cuff            
                                                             
200-367-2.4   2.4 mm Active Redirection Flow Cuff            
                                                             
200-367-2.8   2.8 mm Active Redirection Flow Cuff            
                                                             
200-367-3.2   3.2 mm Active Redirection Flow Cuff            
                                                             
200-367-3.6   3.6 mm Active Redirection Flow Cuff            
                                             
200-367-4.0   4.0 mm Active Redirection Flow Cuff            
                                                             
200-367-5.0   5.0 mm Active Redirection Flow Cuff            
                                                             
200-367-6.0   6.0 mm Active Redirection Flow Cuff            
                                                             
200-367-6.5   6.5 mm Active Redirection Flow Cuff

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Updated March 28, 2006

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